Balkan confederation, proposed union of communist Balkan republics. The plan, conceived by Balkan social-democratic parties at the beginning of the 20th century, was fostered immediately after World War II by Josip Broz Tito of Yugoslavia and Georgi Dimitrov of Bulgaria. To implement the plan, Yugoslavia supported the establishment of a communist regime in Albania and provided aid to the communists fighting for control in Greece. But U.S. support of the anticommunist Greeks and Soviet dissatisfaction with Tito forced the abandonment of the scheme.